Nanoparticle plasmon resonances in the near-static limit

被引:5
|
作者
Pedersen, Thomas G. [1 ]
Jung, Jesper [1 ]
Sondergaard, Thomas [1 ]
Pedersen, Kjeld [1 ]
机构
[1] Aalborg Univ, Dept Phys & Nanotechnol, DK-9220 Aalborg, Denmark
关键词
D O I
10.1364/OL.36.000713
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Localized surface plasmon resonances of metal nanoparticles of arbitrary shape are analyzed in the near-static limit with retardation included to the second order. Starting from the electrostatic approximation, the second-order correction to the resonant dielectric constant is expressed by means of a triple surface integral. For arbitrary nanoparticles with cylindrical symmetry we show how the triple surface integral can be significantly simplified, resulting in a computationally efficient scheme for evaluation of nanoparticle plasmon eigenresonances in the near-static limit. The approach allows for calculation of both dipolar and higher-order resonances. (C) 2011 Optical Society of America
引用
收藏
页码:713 / 715
页数:3
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